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Leader of the Socialist PASOK party Evangelos Venizelos is seen on a television screen as he addresses the media during a news conference at the headquarters of his party in Athens May 27, 2012. Greece's conservatives have regained an opinion poll lead that would allow the formation of a pro-bailout government committed to keeping the country in the euro zone, a batch of new surveys showed on Saturday. REUTERS/John Kolesidis (GREECE - Tags: POLITICS BUSINESS ELECTIONS TPX IMAGES OF THE DAY)